Broke the saddle bolt today on my velo saddle - the both that hold the clamp that grips the saddle rails. Had to ride the remaining 7km of my commute standing up - not fun! The bolt is an M8 x 1.0 (that is fine pitch thread), and has a curved base to the head which locates into the curve of the seat post. Anyone know where I can get one in Perth or online? For now I have a conventional socket cap bolt, which got me home, but the contact area with the seat post is not great. Any ideas?

The serrated part is a "washer" for want of a better word between the head of the bolt and the seat post. On my bikes it is an allen headed machine screw. (Technically a bolt is only threaded at the end.)

JustJames wrote:The serrated part is a "washer" for want of a better word between the head of the bolt and the seat post. On my bikes it is an allen headed machine screw. (Technically a bolt is only threaded at the end.)

Agreed - I have a bolt at the moment (only machined at the end) but no washer - I need a source for the washer (and probably something better than a mild steel bolt)

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